A moment when a character does something for which they will be remembered forever, winning for them the eternal loyalty of fans.

Note that awesome moments are subjective. What strikes one person as being Pure Awesomeness may generate a 'meh' reaction from another. Of course, you already think your example is awesome. Give the other person the same benefit of the doubt.

Examples of Moment of Awesome (Sugar Wiki) are listed on these subpages: